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Separation of human monocytes from a leukocyte-rich plasma
1School of Biomolecular Sciences, Liverpool John Moores University. john@jgrescon.fsbusiness.co.uk
Abstract:
Human peripheral blood monocytes are isolated by flotation from a dense leukocyte-rich plasma (LRP) through two lower-density barriers prepared from OptiPrep. The separation from lymphocytes depends on the more rapid rate of flotation of the monocytes because of their slightly lower density and larger size. The method works optimally only with fresh (within 2 h of drawing) EDTA-anticoagulated blood.
Insights
This study details a method for isolating human peripheral blood monocytes using OptiPrep density gradients. The technique efficiently separates monocytes from lymphocytes in fresh blood samples.
Area of Science:
- Immunology
- Cell Biology
- Biochemistry
Background:
- Monocytes are crucial immune cells involved in various physiological and pathological processes.
- Efficient isolation of pure monocyte populations is essential for immunological research and diagnostics.
Purpose of the Study:
- To develop and optimize a method for isolating human peripheral blood monocytes.
- To achieve high purity and yield of monocytes from blood samples.
Main Methods:
- Isolation of monocytes by flotation using two OptiPrep density gradients.
- Utilizing differential flotation rates based on monocyte density and size.
- Employing EDTA-anticoagulated fresh blood (within 2 hours of collection).
Main Results:
- Successful separation of monocytes from lymphocytes.
- The method relies on the distinct flotation characteristics of monocytes.
- Optimal performance is achieved with freshly drawn blood.
Conclusions:
- The described OptiPrep flotation method provides an effective means for isolating human peripheral blood monocytes.
- This technique is suitable for applications requiring pure monocyte populations from fresh blood.